EXTRAJ(L)                LOCAL COMMANDS                 EXTRAJ(L)             
                                                                              
                                                                              
                                                                              
NAME                                                                          
     extraj - extract columns from the  IHW  HAL_0026  CDROM  ICE             
     trajectory file                                                          
                                                                              
SYNOPSIS                                                                      
     extraj [ -h ] [ column [ ... ] ]                                         
                                                                              
DESCRIPTION                                                                   
     extraj extracts columns from the  "traj_ice.dat"  trajectory             
     file,  found  in  the  "g_z/ice/ephemris"  directory  of the             
     International  Halley  Watch  CDROM  Volume  HAL_0026,   and             
     creates  a  table  containing  just  those fields.  The user             
     specifies which columns are to be selected and  may  option-             
     ally  specify that the column labels be included in the out-             
     put listing.                                                             
                                                                              
     Output is written to the standard output file as a table  of             
     fixed-length  records  with  CR/LF  (\r\n) carriage control.             
     The columns listed in the command line are included  in  the             
     output table, in the specified order.  If a column is listed             
     more than once on input, it will be included as  many  times             
     in the output table.                                                     
                                                                              
INPUT                                                                         
     The user may specify up to 200 columns for the output  table             
     (there are only 114 fields in the trajectory file).  Also, a             
     range of columns may be specified by using the form "AA-BB",             
     where  AA  is the first column, BB is the last, and there is             
     no whitespace imbedded in the expression.                                
                                                                              
     The -h option,  when  present,  indicates  that  the  column             
     labels  (listed  in the first record of the trajectory file)             
     be included as column headings in  the  output  table.   The             
     headings,  when  included,  are  centered above each column.             
     The default action is not to include the column labels.                  
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
Sun Release 4.1   Last change: 08 December 1994                 1